diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 5681a5f..2b315b5 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -26,6 +26,18 @@ jobs:
             redis:
                 image: "eqalpha/keydb"
                 ports: [ "6379:6379" ]
+            postgres:
+                image: "postgres:latest"
+                env:
+                    POSTGRES_DB: test
+                    POSTGRES_USER: postgres
+                    POSTGRES_PASSWORD: postgres
+                ports: [ "5432:5432" ]
+                options: >-
+                    --health-cmd pg_isready
+                    --health-interval 10s
+                    --health-timeout 5s
+                    --health-retries 5
         steps:
             -   uses: "actions/checkout@v3"
             -   uses: "actions/setup-go@v3"
diff --git a/storage/pg/storage_test.go b/storage/pg/storage_test.go
index b298b8f..0faae39 100644
--- a/storage/pg/storage_test.go
+++ b/storage/pg/storage_test.go
@@ -16,7 +16,7 @@ CREATE TABLE mo_peers (
 	info_hash bytea NOT NULL,
 	peer_id bytea NOT NULL,
 	address inet NOT NULL,
-	port int2 NOT NULL,
+	port int4 NOT NULL,
 	is_seeder bool NOT NULL,
 	is_v6 bool NOT NULL,
 	created timestamp NOT NULL DEFAULT current_timestamp,
@@ -38,7 +38,7 @@ CREATE TABLE mo_kv (
 )
 
 var cfg = Config{
-	ConnectionString: "host=127.0.0.1 database=test user=postgres",
+	ConnectionString: "host=127.0.0.1 database=test user=postgres pool_max_conns=50",
 	PingQuery:        "SELECT 1",
 	Peer: peerQueryConf{
 		AddQuery:            "INSERT INTO mo_peers VALUES($1, $2, $3, $4, $5, $6, $7) ON CONFLICT (info_hash, peer_id, address, port) DO UPDATE SET created = EXCLUDED.created, is_seeder = EXCLUDED.is_seeder",
diff --git a/storage/test/storage_bench.go b/storage/test/storage_bench.go
index 53b57c8..d822cc7 100644
--- a/storage/test/storage_bench.go
+++ b/storage/test/storage_bench.go
@@ -36,7 +36,7 @@ func generateInfoHashes() (a [ihCount]bittorrent.InfoHash) {
 func generatePeers() (a [peersCount]bittorrent.Peer) {
 	for i := range a {
 		var ip []byte
-		if i < peersCount/2 {
+		if i%2 == 0 {
 			ip = make([]byte, net.IPv4len)
 		} else {
 			ip = make([]byte, net.IPv6len)
diff --git a/storage/test/storage_test_base.go b/storage/test/storage_test_base.go
index 832b21a..8c82890 100644
--- a/storage/test/storage_test_base.go
+++ b/storage/test/storage_test_base.go
@@ -13,7 +13,7 @@ import (
 	"github.com/sot-tech/mochi/storage"
 )
 
-const kv_store_ctx = "test"
+const kvStoreCtx = "test"
 
 func init() {
 	_ = log.ConfigureLogger("", "warn", false, false)
@@ -200,11 +200,11 @@ func (th *testHolder) LeecherPutGraduateAnnounceDeleteAnnounce(t *testing.T) {
 
 func (th *testHolder) CustomPutContainsLoadDelete(t *testing.T) {
 	for _, c := range testData {
-		err := th.st.Put(kv_store_ctx, storage.Entry{Key: c.peer.String(), Value: c.ih.RawString()})
+		err := th.st.Put(kvStoreCtx, storage.Entry{Key: c.peer.String(), Value: c.ih.RawString()})
 		require.Nil(t, err)
 
 		// check if exist in ctx we put
-		contains, err := th.st.Contains(kv_store_ctx, c.peer.String())
+		contains, err := th.st.Contains(kvStoreCtx, c.peer.String())
 		require.Nil(t, err)
 		require.True(t, contains)
 
@@ -214,7 +214,7 @@ func (th *testHolder) CustomPutContainsLoadDelete(t *testing.T) {
 		require.False(t, contains)
 
 		// check value and type in ctx we put
-		out, err := th.st.Load(kv_store_ctx, c.peer.String())
+		out, err := th.st.Load(kvStoreCtx, c.peer.String())
 		require.Nil(t, err)
 		ih, err := bittorrent.NewInfoHash(out)
 		require.Nil(t, err)
@@ -225,7 +225,7 @@ func (th *testHolder) CustomPutContainsLoadDelete(t *testing.T) {
 		require.Nil(t, err)
 		require.Nil(t, dummy)
 
-		err = th.st.Delete(kv_store_ctx, c.peer.String())
+		err = th.st.Delete(kvStoreCtx, c.peer.String())
 		require.Nil(t, err)
 
 		contains, err = th.st.Contains("", c.peer.String())
@@ -245,29 +245,29 @@ func (th *testHolder) CustomBulkPutContainsLoadDelete(t *testing.T) {
 			Value: c.ih.RawString(),
 		})
 	}
-	err := th.st.Put(kv_store_ctx, pairs...)
+	err := th.st.Put(kvStoreCtx, pairs...)
 	require.Nil(t, err)
 
 	// check if exist in ctx we put
 	for _, k := range keys {
-		contains, err := th.st.Contains(kv_store_ctx, k)
+		contains, err := th.st.Contains(kvStoreCtx, k)
 		require.Nil(t, err)
 		require.True(t, contains)
 	}
 
 	// check value and type in ctx we put
 	for _, p := range pairs {
-		out, _ := th.st.Load(kv_store_ctx, p.Key)
+		out, _ := th.st.Load(kvStoreCtx, p.Key)
 		ih, err := bittorrent.NewInfoHash(out)
 		require.Nil(t, err)
 		require.Equal(t, p.Value, ih.RawString())
 	}
 
-	err = th.st.Delete(kv_store_ctx, keys...)
+	err = th.st.Delete(kvStoreCtx, keys...)
 	require.Nil(t, err)
 
 	for _, k := range keys {
-		contains, err := th.st.Contains(kv_store_ctx, k)
+		contains, err := th.st.Contains(kvStoreCtx, k)
 		require.Nil(t, err)
 		require.False(t, contains)
 	}